Mitsubishi Electric PLA-ZRP140BA / PUHZ-ZRP140VKA [4/38] Installing the indoor unit
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Mitsubishi Electric PLA-ZRP140BA / PUHZ-ZRP140VKA [4/38] Installing the indoor unit

Mitsubishi Electric PLA-ZRP100BA / PUHZ-SHW112YHA [4/38] Installing the indoor unit
4
A=17
+5
0
17
105
(
240
)
+5
0
605
810
3. Installing the indoor unit
3.4. Branch duct hole and fresh air intake hole (Fig. 3-4)
At the time of installation, use the duct holes (cut out) located at the positions
shown in Fig3-4, as and when required.
•
A fresh air intake hole for the optional multi function casement can also be made.
Note:
The gure marked with * in the drawing represent the dimensions of the main
unit excluding those of the optional multi function casement.
When installing the optional multi function casement, add 135 mm to the di-
mensions marked on the gure.
When installing the branch ducts, be sure to insulate adequately. Otherwise
condensation and dripping may occur.
When installing the fresh air intake hole, be sure to remove the insulator
P
that is pasted on the indoor unit.
A
Branch duct hole
I
ø175 burring hole pitch
B
Indoor unit
J
Fresh air intake hole diagram
C
Fresh air intake hole
K
3-ø2.8 burring hole
D
Drain pipe
L
ø125 burring hole pitch
E
Refrigerant pipe
M
ø100 cut out hole
F
Branch duct hole diagram
N
Ceiling
(view from either side)
O
Detailed gure of removing the insulator
G
14-ø2.8 burring hole
P
Insulator
H
ø150 cut out hole
3.5. Suspension structure (Give site of suspension
strong structure) (Fig. 3-5)
• The ceiling work differs according to the construction of the building. Building
constructors and interior decorators should be consulted for details.
(1)
Extent of ceiling removal: The ceiling must be kept completely horizontal and
the ceiling foundation (framework: wooden slats and slat holders) must be rein-
forced in order to protect the ceiling from vibration.
(2)
Cut and remove the ceiling foundation.
(3) Reinforce the ends of the ceiling foundation where it has been cut and add ceil
-
ing foundation for securing the ends of the ceiling board.
(4)
When installing the indoor unit on a slanted ceiling, attach a pillar between the
ceiling and the grille and set so that the unit is installed horizontally.
1
Wooden structures
• Use tie beams (single storied houses) or second oor beams (2 story houses) as
reinforcing members.
•
Wooden beams for suspending air conditioners must be sturdy and their sides
must be at least 6 cm long if the beams are separated by not more than 90 cm
and their sides must be at least 9 cm long if the beams are separated by as much
as 180 cm. The size of the suspension bolts should be ø10 (3/8"). (The bolts do
not come with the unit.)
2
Ferro-concrete structures
Secure the suspension bolts using the method shown, or use steel or wooden
hangers, etc. to install the suspension bolts.
3.6. Unit suspension procedures (Fig. 3-6)
Suspend the main unit as shown in the diagram.
Figures given in parentheses represent the dimensions in case of installing optional
multi function casement.
1.
In advance, set the parts onto the suspension bolts in the order of the washers
(with insulation), washers (without insulation) and nuts (double).
•
Fit the washer with cushion so that the insulation faces downward.
• In case of using upper washers to suspend the main unit, the lower washers (with
insulation) and nuts (double) are to be set later.
2.
Lift the unit to the proper height of the suspension bolts to insert the mounting
plate between washers and then fasten it securely.
3.
When the main unit cannot be aligned against the mounting hole on the ceiling,
it is adjustable owing to a slot provided on the mounting plate.
•
Make sure that A is performed within 17-22 mm. Damage could result by failing
to adhere to this range. (Fig. 3-7)
Caution:
Use the top half of the box as a protective cover to prevent dust or debris
from getting inside the unit prior to installation of the decorative cover or
when applying ceiling materials.
3.7. Conrming the position of main unit and
tightening the suspension bolts (Fig. 3-8)
• Using the gauge attached to the grille, ensure that the bottom of the main unit is
properly aligned with the opening of the ceiling. Be sure to conrm this, otherwise
condensation may form and drip due to air leakage, etc.
•
Conrm that the main unit is horizontally levelled, using a level or a vinyl tube
lled with water.
•
After checking the position of the main unit, tighten the nuts of the suspension
bolts securely to fasten the main unit.
•
The installation template (top of the package) can be used as a protective sheet
to prevent dust from entering the main unit when the grilles are left unattached for
a while or when the ceiling materials are to be lined after installation of the unit is
nished.
*
As for the details of tting, refer to the instructions given on the Installation tem-
plate.
Fig. 3-4
Fig. 3-5
Fig. 3-6
Fig. 3-7
Fig. 3-8
#
"
350
90
70°
100 100 90
100
130
*155
*167
*158
120°
120°
!
D
Ceiling
E
Rafter
F
Beam
G
Roof beam
H
Use inserts rated at 100-150 kg each
(procure locally)
I
Suspension bolts M10(3/8”) (procure
locally)
J
Steel reinforcing rod
A
Unit
B
Grille
C
Pillar
A
Suspension bolt
B
Ceiling
C
Nut
D
W
asher (with insulation)
E
Mounting plate
F
W
asher (without insulation)
G
Check using the Installation gauge
A
Main unit
B
Ceiling
C
Gauge
D
Ceiling opening dimensions
A
Main unit
B
Ceiling
C
Installation template
(T
op of the package)
D
Screw with washer (accessory)
Min. 30
01_BH79D045K08_EN.indd 4 2014/02/13 13:20:50

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